Abstract
Abstract Background The mineral nutrient concentrations in plants are usually decreased under elevated CO 2 concentration ([CO 2 ]), while warm root‐zone temperature (RZT) can improve plant growth and the absorption of mineral nutrients in plants. Aims The effects of RZT on the growth and mineral nutrient concentrations in cucumber ( Cucumis sativus L.) plants were investigated under different [CO 2 ] levels. Methods A soil‐cultured pot experiment was carried out on cucumber plants under two [CO 2 ] levels (ambient and elevated) and two RZT levels (cold and warm) in four open‐top chambers. Results Although elevated [CO 2 ] promoted root growth, it did not counteract the decrease in the concentration of nitrogen ([N]), potassium ([K]), calcium ([Ca]), and magnesium ([Mg]) in cucumber plants due to the decreased mass flow indicated by the decreased transpiration rate (Tr) under cold RZT. In comparison, warm RZT increased the [N], [K], [Ca], and [Mg] in cucumber plants under elevated [CO 2 ], attributed to a higher Tr and better root growth. In addition, the concentration of phosphorus ([P]), iron ([Fe]), manganese ([Mn]), and zinc ([Zn]) in cucumber plants was maintained or increased under elevated [CO 2 ] by the promoted root growth related to interception by warm RZT. Conclusions Under elevated [CO 2 ], warm RZT could ensure the [N], [K], [Ca], and [Mg] in cucumber plants mainly by increasing the Tr and improving the root growth. Whereas warm RZT maintained or increased [P], [Fe], [Mn], and [Zn] primarily relied on the improved interception as indicated by the better root growth.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Elevated CO2 promoted root growth under cold root zone temperature.
- Taxon
- cucumber
Cucumis sativuse2 - Treatment
- elevated [CO 2 ]e0
- Outcome
- root growthe0
- Direction
- promotede0
- Qualifier
- cold RZTe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“elevated [CO 2 ] promoted root growth”
e1“under cold RZT”
e2“in cucumber ( Cucumis sativus L.) plants”
Claim · model-written summary
Under cold RZT, elevated CO2 decreased cucumber N, K, Ca, and Mg concentrations.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- elevated [CO 2 ]e1
- Outcome
- concentration of nitrogen ([N]), potassium ([K]), calcium ([Ca]), and magnesium ([Mg]) in cucumber plantse0
- Direction
- decreasee0
- Qualifier
- under cold RZTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decrease in the concentration of nitrogen ([N]), potassium ([K]), calcium ([Ca]), and magnesium ([Mg]) in cucumber plants due to the decreased mass flow indicated by the decreased transpiration rate (Tr) under cold RZT”
e1“elevated [CO 2 ] promoted root growth”
Claim · model-written summary
Elevated CO2 decreased transpiration rate under cold RZT.
- Taxon
- cucumberCucumis sativuse2
- Treatment
- elevated [CO 2 ]e1
- Outcome
- transpiration rate (Tr)e0
- Direction
- decreasede0
- Qualifier
- under cold RZTe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased transpiration rate (Tr) under cold RZT”
e1“elevated [CO 2 ] promoted root growth”
e2“in cucumber ( Cucumis sativus L.) plants”
Claim · model-written summary
Warm RZT increased cucumber N, K, Ca, and Mg under elevated CO2.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- warm RZTe0
- Outcome
- [N], [K], [Ca], and [Mg] in cucumber plantse0
- Direction
- increasede0
- Qualifier
- under elevated [CO 2 ]e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“warm RZT increased the [N], [K], [Ca], and [Mg] in cucumber plants under elevated [CO 2 ]”
Claim · model-written summary
Warm RZT increased transpiration rate and improved root growth under elevated CO2.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- warm RZTe1
- Outcome
- Tr and better root growthe0
- Direction
- highere0
- Qualifier
- under elevated [CO 2 ]e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“attributed to a higher Tr and better root growth”
e1“warm RZT increased the [N], [K], [Ca], and [Mg] in cucumber plants under elevated [CO 2 ]”
Claim · model-written summary
Warm RZT maintained or increased cucumber P, Fe, Mn, and Zn concentrations under elevated CO2.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- warm RZTe0
- Outcome
- concentration of phosphorus ([P]), iron ([Fe]), manganese ([Mn]), and zinc ([Zn]) in cucumber plantse0
- Direction
- maintained or increasede0
- Qualifier
- under elevated [CO 2 ]e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentration of phosphorus ([P]), iron ([Fe]), manganese ([Mn]), and zinc ([Zn]) in cucumber plants was maintained or increased under elevated [CO 2 ] by the promoted root growth related to interception by warm RZT”
Claim · model-written summary
Warm RZT nutrient improvement was attributed to better mass flow for N, K, Ca, Mg and interception for P, Fe, Mn, Zn.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- warm RZTe0
- Outcome
- ensure the [N], [K], [Ca], and [Mg] in cucumber plantse0
- Qualifier
- mainly by increasing the Tr and improving the root growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“warm RZT could ensure the [N], [K], [Ca], and [Mg] in cucumber plants mainly by increasing the Tr and improving the root growth”
e1“warm RZT maintained or increased [P], [Fe], [Mn], and [Zn] primarily relied on the improved interception as indicated by the better root growth”
The same questions in other papers
co2 · physiology: gas exchange · Cucumis sativus (cucumber)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →co2 · molecular: metabolites · Cucumis sativus (cucumber)Positive and negative results
4 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
12 papers more in this group
See all 16 papers →co2 · growth · Cucumis sativus (cucumber)Positive and negative results
17 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- negative
16 papers more in this group
See all 20 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.